'Attachments' macro does not upload attachments using drag and drop

Summary

Using the 'Attachments' macro to list all attachments from another page will not upload additional attachments to the page using the drag and drop option. However, using the "Browse for files" option works as expected.

Steps to Reproduce

1. Login to Confluence
2. Create a new space
3. Create a new page in that space
4. Insert the 'Attachments' macro to the page
5. Edit the macro and modify the 'Page Title' field to another page (preferably one that contains attachments)
6. Save the macro settings and save the page
7. Drag and drop an attachment to the macro

Expected Results

The attachment will be added to the page specified in the 'Page Title' field earlier and it will be appended to the list of attachments in the macro.

Actual Results

The attachment is added to the current page where the macro exists instead. You can view the attachment by navigating to "... >> Attachments".

Environment

Experienced this issue in the following environments:

1. Windows 10 - Google Chrome Version 50.0.2661.75 (64-bit)
2. Ubuntu 14.04 LTS - Google Chrome Version 49.0.2623.87 (64-bit)

Workaround

1. Add attachments using the "Browse for files" option in the 'Attachments' macro.
2. Add attachments directly by navigating to the page.